package net.lshimokawa.pap6;

public class Calculadora {

	public final int sumar(int a, int b) {

            return a+ b;
		
	}

	public final int restar(int a, int b) {
            return a- b;
		
                
	}

	public final int multiplicar(int a, int b) {

            return a* b;
		
	}

	public final int dividir(int a, int b) {

            if (b==0)
            {
                return -1;
            }
            else
            {
            return a/ b;
            }
		
	}
}
